Printing machine record sheet holder



June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet l I II l2O' 79 1 8O l8 11 F l G I INVENTOR.

' HEINRICH w. WAGEMANN ATTORNEY June 30, 1 H; w. WAGEMANN PRINTING MACHINE RECORD SHEET HOLDER V D INVENTOR. HEI NRICH W. WAGEMANN l2 Sheets-Sheet 2 Filed Sept. 21, 1960 ATTORNEY June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sep't. 21, 1960 12 Sheets-Sheet 3 INVENTOR. H EINRICH w. WAGEMANN ATTORNEY June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet 4 INVENTOR. 'HEINFUCH W. WAGEMANN ATTORNEY June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet 5 INVENTOR. HEINRICH W. WAGEMANN ATTORNEY June 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 INVENTOR. HEINRICH W. WAGEMANN ATTORNEY June 30, 1964 H. w. WAGEMANN I 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet 7 INVENTOR. HEINRICH W. WAGEMAN N ATTORNEY June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER l2 Sheets-Sheet 8 ATTORNEY June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet 9 INVENTOR. HEINRICH W. WAGEMANN ATTORNEY June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet 10 I93} I930} Isle. (I92 F I G. l7

use

FIG. l8 INVENTOR.

HEINRICH w. WAGEMANN w ATTORNEY June 30, 1964 H. w. WAGEMANN 3,139,169

PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet 11 H II I INVENTOR. HEINRICH w. WAGEMANN Fl G. 2|

BY PM ATTORNEY PRINTING MACHINE RECORD SHEET HOLDER Filed Sept. 21, 1960 12 Sheets-Sheet 12 ATTORNEY United States Patent 3,139,169 PRINTING MACHINE RECORD SHEET HOLDER Heinrich W. Wagemann, West Orange, N.J., assignor to Monroe Calculating Machine Company, Orange, N.J., a corporation of Delaware Filed Sept. 21, 1960, Ser. No. 57,498 8 Claims. (Cl. 197-127) As exemplified in US. Patents 2,311,471 and 2,426,951,

prior devices for moving the record sheet to, and stopping it at, the selected line position have operated directly on the card itself. That is to say, the moving means, of whatever kind, has directly engaged the sheet;

and the movement of the sheet has beenterminated at I the desired line position by causing the moving sheet to come into engagement with a selected stop or abutment member. It will be apparent, therefore, that when the sheet is to be used a plurality of times, the wear imposed on the sheet, particularly by the stopping means, will deform and possibly tear the edge of the sheet thereby rendering it unsuitable for use.

The present invention avoids these disadvantages .in-. herent in the prior art devices by providing a holder which receives the sheet. Suitable means properly locate and securely hold the sheet in the holder. Thereafter, the holder carrying the sheet is moved to the preselected position in which the desired line of the sheet is disposed to receive printing. The holder per se is'moved and then stopped, the sheet contained in the holder not being subjected to the stresses and wear involved in performing these operations. v

It therefore is a primary object of thepresent inven-' tion to provide a novel record sheet handlingmechanism for a printing machine.

A more specific object is the provision of novel mechanism for positioning a record sheet in a preselected line position relative to the printing line of a printing machine.

It is also an object of the invention to provide such sheet positioning mechanism in which the sheet per se is not directly operated on by themeans which causes the moving and stopping of the sheet.

A further object is the provision of a novel sheet handling'mechanism for a printing machine, said mechanism being of such a nature that Wear and deformation of the sheet is greatly minimized.

A further object is the provision of a novel solenoid-' controlled read-out printing device.

' A still further object is the provision of a novel shift of the line selection keyboard.

FIG. 2 is a longitudinal sectional .view of the machine taken on line IIII of FIG. 1.

FIG. 3 is a front elevational view of the card holder and related control mechanism therefor, taken on line III-III of FIG. 12.

FIG. 4 is a right side sectional view taken on line IVIV of FIG. 3.

FIG. 5 is a section taken on line V--V of FIG.'3.'

FIG. 6 is a detail sectional view taken on line VI-VI of FIG. 4, showing the governor for controlling the downward movement of the card holder.

FIG. 7 is a left side elevational view of the operating lever and the mechanism for controlling the timing of the operation of the card holder.

FIG. 8 is a fragmentary detail view of the mechanism.

FIGS. 9 and 10 are detail views similar to FIG. 7 taken on lines IX-IX and XX, respectively, of FIG. 3.

FIG. 11 is a right side elevational view of the card holder and some ancillary control mechanism.

FIG. 12 is a right side elevational view of the machine showing the main drive and the line selection keyboard.

FIG. 12A is a fragmentary detail view of the front end printing FIG. 13 is a fragmentary detail view of the means for locking the keyboard while the machine is operating.

FIG. 14 is a detail view of the single cycle clutch.

FIGS. 15 and 16 are, respectively, top plan and right side elevational views of the mechanism forrestoring the pin carriage to home position.

FIG. 17 is a sectional front elevation, taken on line XVIIXVII of FIG. 18, showing the solenoid-operated pin carriage for controlling the printing mechanism.

FIG. 18 is a section taken on line XVIII--XVIII of FIG. 17.

FIG. 19 is a top plan view of the solenoid-actuated setting mechanism for the pin carriage, taken on line XIXXIX of FIG. 18.

FIG. 20 is a detail view of a portion of the pin carriage escapement mechanism, taken on line XXXX of FIG. 19.

' FIG. 21 is a sectional view'of the pin carriage taken on line XXIXXI of FIG. 18, and

FIG. 22 is a timing diagram of the operation of the:

machine.

General Description of Machine Referring particularly to FIG. 1 of the drawing, the machine includes a differentially rockable holder 1 for the card or other record sheet upon which printing is to be effected. The holder includes an arcuate platen 2 and an arcuate clamping plate 3 which is normally spaced from the platen. Thecard is adapted to be inserted and 7 held between these two elements. In response to manual depression of a main operating lever 4, the clamping plate is moved toward the platen to press or clamp the card concentrically against the latter. Suitable means is effective to insure that the clamped card is properly positioned in a given predetermined position relative to the platen. the holder is swung downwardly a differential amount to position a preselected line of the card at the printing line of an ordinal series of differentially adjustable type wheels 5. A

After the card is properly clamped in position;

cured to the base 18 of the machine.

' The downward line positioning movement of the holder is controlled by a line selection keyboard 6 comprising a a rigidly secured. The hubs plurality of manually depressible keys 7 each of which corresponds to a different line position.

The information to be printed on the card by the type Wheels is controlled by a solenoid actuated pin carriage 8 (FIG. 2). The solenoids 11 (FIG. 1) for operating the pin carriage are operated in response to signals sent from any suitable information transmitting device (not shown) for which the machine of the present invention serves as a printing read-out. The information transmittingdevice may, for example, be a computer, calculating machine, punch card interpreter, etc. It will be, of course, understood that the particular nature of the information transmitting device is immaterial to and forms no part of the present invention. The instant machine and such information transmitting device are connected together byan electrical control cable 12. 7

After -the pins-of the, pin carriage have been set and the card holder adjusted to the selected line position, a cycle. of motor operation of the machine is automatically initiated. During the cycle, actuator racks 13 (FIGS. 2,

upon terminated.

t H Work Sheet Holder 1 The holder for the card or other work sheet will now be described. The holder includes the platen 2 against which the card is adapted to be held by clamping plate 3 in a predetermined position relative to the platen, The

shaft 15, as by set screws for rotationwith the shaft.

The card clamping plate 3 is a thin arcuate member having substantially the same degree of curvature as the platen. It is provided withlarge cut-out areas 22, 23 to permit visual inspection of the card, which will be behind the plate. Collars 24, 25 (FIG. 3) secured to the lower ends of respective opposed rearwardly extending side portions 26, 27 of plate 3, serve to mount the plate fast on a shaft 28. The latter shaftis journalled for rotation in the platen framing plates 2%), 21. It will therefore be seen that clamping plate 3 is carried with-the platen 2 but is rotatably movable relative thereto with shaft 28. 'As

shown in FIGS. 4 and 5, in its normal unoperated angular position relative to the platen, the clamping plate 3 is spaced forwardly from the latter to define between the two an upwardly opening throat into which the card C may be inserted by-the operator. As described in detail subsequently, shaft 28 is adapted to be rocked clockwise to cause the clamping plate to move toward the platen and thereby hold the card C wrapped around the platen.

holderis normally disposed in the upper, clockwise position seen in FIGS. 4, 5, and ll whereby the card may readily be inspected by the operator through large cut-out areas of the clamping plate. Upon operation of suitable control devices of the present invention, the clamping plate-which is normally spaced forwardly from the platen--will move toward the latter to thereby clamp the card in predetermined position relative to the platen. Thereafter these three elements, i.e., the platen, the card, and the clamping plate'holding the card gainst the platen, will be'rocked downwardly (counterclockwise in FIGS. 4, .5, and 11.) 'to position a previously selected line of the card to receive printing.

- The platen 2 comprises a thin plate of "substantially uniform thickness in the shape of a segment of a thin walled cylinder. The portion of the platen which lies behind the area-Lof the work sheet or card which is to receive printing is recessed inwardly (FIGS. 5, 8) to receive a pad 14 of resilientmaterial, such'as rubber, to serve as a cushioning means for receiving the impact of the printing members. The outer surface of resilient .pad 14 lies fiush' with outer surface of the platen to avoid any discontinuity in the surface against which the card is held.

i The platen 2 is rigidly mounted on a rockable shaft 15 whose central longitudinal axis coincides with the plates. As best seen in FIGS. 4, 11 each of the platen framing plates 29, 21 essentially comprises a plurality of arms radiating from a central hub portion 20a, 21a. 'At their outerends these arms merge with an integral arcuate portion 20b, 21b whose outer edge is concentric with the inner surface of platen 2, and to which the platen is by the clamping plate.

To facilitate introduction of the card intov the throat, the upper ends 26a, 27a of the side portions 26, 27 of clamping plate 3. are inclined outwardly to provide sloping guide surfaces which willlead the card into the throat uponinsertion of the card into the holder.

' The position of the card C immediately after insertion thereof by the operator into the open throat is shown by j the dot-dash line in FIGS. 4 and 5. At this time, the

Before operation of the machine, the card is held for- I wardly in the position closely approaching vertical seen in FIGS. 4 and .5 by the respective forward free ends 37a, 38a of a pair of spaced arms 37 and 38. The

left-handed arm 37 is best seen in FIG. 5, while the right hand arm 38 is best seen in FIG. 4. Both arms are rigidly mounted at their lower ends on shaft 28 and extend upwardly, their forward portions 37a, 38:: extending to the outside of the platen through slots in the latter. It will be recalled from the previous description that the card clamping plate 3 is rigidly secured to this shaft and that the shaft is adaped to be rotated clockwise (FIGS. 4, 5) whereby the pressure plate will bend the card around and against the platen 2.

,The card holder 1 also includes a card depresser finge 41 (FIGS. 1, 3, 4). This finger is rigidly secured to a shaft 42 which extends between and is journalled for rotation in the platen framing plates 20, 2]... Finger 41 extends upwardlyto a point outside the platen through slot 43 cut in the latter. A relatively heavy spring 44 tends to bias finger 41 forwardly but the finger is normally held blocked in a position adjacent the rearward end of slot 43. Under the control of mechanism to be described shortly, in response to operator depression of the main operating lever 4, shaft 28 will be rocked clockwise as viewed in FIGS. 4 and 5, swinging the clamping plate-3 rearwardly toward the platen to press.

37a," 38a to be retracted behind' the platenthereby permitting the card to be wrapped around theplaten.

At just about the time when the clamping plate 3 has reached its innermost position relative to the platen 2, a blocking means-which has up to now'been holding shaft 42 in clockwise position- --will be released. The card depresser finger 41 will Zita, 21a aresecured fast to Arms 37 and therefore be free to rock downwardly, i.e., counterclock wise, under the urging of its spring 44. As the de. presser finger moves counterclockwise, itfwill engage the upper edge ofthe card and will push the card, along with the fingers 30, 31 supporting the latter downwardly. The depresser finger 41 will continue to move the card down until the card comes to rest seated on an integral inturned lip 45 formed along the entire lower edge of the clamping plate 3. The card,,seated on lip 45, now lies in its proper predetermined position relative to the platen and is held in such position by the clamping plate 3 from the front and by the depresser finger 41 from above. Sufiicient clearance is provided between the clamping plate and the platen when the former is in closed position to allow the card to be urged circumferentially relative to the clamping plate and the platen by finger 41 into seated position on lip 45.

Line Selection position a selected line of the card to receive printing impressions from the typemembers 5. The extent of downward line positioning movement of the card holder is controlled by the line selector keyboard-6 whose keys 7 each correspond to the different line printing positions to which the holder is rockable.

Theclosed card holder is adapted to be driven or rocked downwardly to the selected line position by means of a normally charged relatively heavy spring 50 (FIG. 11) connected between the fixed framing of the machine and a lever 51 pivoted on the fixed framing at 52.- A gear segment 53 rigidly secured to the upper end of lever 51 meshes with a corresponding segment 54 rigidly afiixed to the card holder shaft 15. Hence, clockwise operating movementof lever 51 will drive the card holder downwardly. V

The line selector keys 6 differentially control the downward line positioning movement of the card holder, when the latter is released for such movement, as follows. An arm 55 (FIGS. 10, 12) rigidly aflixed to the left-hand end portion of the card holder shaft 15 includes a laterally extending pin 55a (note particularly FIG. As viewed in FIG. 10, arm 55 will move clockwise when the card holder descends. An offset lug 56a formed at therearward end of a fore and aft extending link 56 lies in the path of movement of pin 55a. A fixed shaft 57 slidably supports the i'earward end of link 56 for longitudinal movement, the forward end of the link being pivotally connected at 60 (FIG. 12) to rack 61 of the line selection mechanism. The forward portion of link 56 lies to-the' left of the mainleft-hand machine framing plate-16. The link crosses transversely through an opening 62 of framing plate 16 and then runs rearwardly along the right-hand side of said framing plate. A tension spring 63 connected to link 56 normally urges the link and rack 61 to their forwardmost positions shown in FIG. 12 as limited by the supporting shaft 57 at the rearward end of the link. Rack 61is slidably supported for longitudinal movement on fixed headed studs 64. The rack includesa series of upstanding rack teeth 61a 'each adapted to cooperate with the stem of a. related key 7 of the line selection keyboard fwhereby the extent of rearward operating movement of the rack is controlled; It will therefore'been seen that when the'card holder 1 is rocked downwardly by spring 50, pin 55a of arm 55 will engage lug 56a of link 56 and move the link and the rack to the rear-against the tension of spring 63. This rearward movement will continued until, it is terminated by the stem of a depressed line selector key 7 engaging its associated rack tooth 61a.

Since the link is now blocked against any further rearward movement, its lug 56a engaged by pin 55a will have terminated the downward movement of the card holder 1 in the preselected line position corresponding to the depressed key 7.

Any one of numerous known keyboard and rack constructions can be used. However, in the preferred embodiment of the invention disclosed herein, there is employed the novel keyboard which forms the subject matter of my copending' patent application S.N. 824,375, filed July 1, 1959, now Patent No. 3,024,988, and entitled Keyboard Mechanism. Reference is hereby made to said copending application for a detailed disclosure of the keyboard and rack structure. Briefly, the keyboard comprises the single column of keys 7 whose stems are guided for vertical movement in upper and lower framing plates 65, 66 respectively. An elongated latching slide 67 is supported in the keyboard framing for longiutdinal movement. The slide is normally held under spring tension inthe rearward position shown in FIG. 12; however, in response to depression of any one of the. keys 7, it will be cammed forwardly by engagement of a laterally extending lug 70 of the key with a sloping cam edge 71a of a corresponding one of a series of upstanding projections 71 of the slide. As described in my aforementioned copending application, successive ones'of the rack teeth 61a are laterally offset from one another to provide a more compact rack structure.

Operating and Control Means for Card Holder The mechanism for controlling the closing of the card holder 1 and the downward rocking movement of the closed holder to the preselected line position will now be described.

At the rear of the machine a transverse shaft (FIGS. 1, 3, 5, 7) is secured between the fixed framing plates 16, 17. Rotatably journalled as one rigid unit 79 on shaft 80 are the main operating lever 4, an arm 81 for controlling'the timing of the downward movement of the 7 card holder to the preselected line position, and an arm 82 which controls the operation of the previously described card depresser finger 41. A spring 83 connected between the depending tail of the main operating lever 4 and the fixed framing of the machine urges unit 79 counterclockwise (as viewed from the left side of the. machine) so that the three arms normally stand in the angular position shown in FIG. 7. The card holder shaft 15 extends through a vertical forwardly opening slot 84 of lever 4, and cooperates with the respective opposite end walls of the slot to limit the rocking movement of the lever (and therefore of the entire unit 79). To facilitate manual operation of lever 4, it is provided with an enlarged key button 85. i e

The arm 81 includes a forwardly extending portion 81a and a central upstanding portion 81b, which portions carry rollers 86 and 87 respectively. The upstanding part 81b terminates in a lateral lug 81c. 'Pivoted on arm 81 at 91 is an auxiliary link 92, said armand link being urged together by spring 93, whereby a rearwardly extending hook-shaped portion 92a of the link engages roller 87. Just in front of hook -shaped portion 92a, link 92 is formed with a lateral lug 92b.

The rightmost arm 82 of unit 79 has an inclined forward blocking edge 82a which is adapted to normally maintain the card depresser finger 41 in unoperated, i.e., upward position. It will be recalled that the card depresser finger is rigidly mounted on'rotatable shaft 42 (FIG. 4) and is adapted to be swung forwardly to properly seat the card C in the holder 1 under the urging of spring 44. However, a short crank arm 98 (FIG. 5) fast with shaft 42 includes a roller 98a whichis normally engaged and blocked by edge 82a of arm 82 to hold shaft 42--and the card depresser finger 41 mounted thereon in the clockwise unoperated position shown in FIG. 4.

When the main operating lever 4 is 'de'p-r'essedby the operator, arm 82 rigid therewith will likewise descend. As this downward movement continues, a point will be reached at which edge 82a no longer blocks crank arm 98. At this time, under the urging of spring 44 and as controlled by an upper cam edge 82b of arm 82 on which "roller 98 a'now rides, the card depresser finger will be allowed, to move down to seat the card on lip 45 of. clamping plate 3 of the card holder.

Before the card depresser finger is released for forward movement, however, the clamping plate 3 is swung toward the platen 2 to clamp the card, as will be described shortly.

As best seen in FIG. 3, an inwardly extending stub shaft 94 is rigidly secured to the left-hand main framing plate 16. Loosely supported for independent rotation on shaft 94 are'three arms 95, 96, and 97. Hereinafter these arms .will be designated respectively as the card holder lock 95, the left-hand timing arm 96, and the right-hand timing arm 97. Referring also to FIGS. 7 and the card holder lock 95 is of the particular configuration shown therein, and is normally biased clockwise by a spring 100 as limited by its upper free end abutting shaft 15. The left and right timing arms 96, 97 are substantially identical in shape, terminating at their upper free ends in hatchet shaped portions 96a and 97a respectively and being formed at their intermediate portions with rearwardly directed tails 96b, 9712 respectively.

At this juncture it may be noted that a series of spaced washers 101 (best seen in FIGS. 1, 3) is rigidly mounted on shaft. to serve as'spacing and guiding means for the following parts: cardholder lock 95; auxiliary link 92; timing arm 96; arm 81; and timing arm 97. That is to say, a portion of each of these components is adapted to extend into the space defined between different adjacent pairs of the washers 101 whereby any tendency toward lateral movement or deformation is avoided. With reference to the two timing arms 96, 97, it is the tail portions 96b, 97b of these members which cooperate with related ones of washers 101 for this purpose Both timing arms 96 and 97 are maintained under counterclockwise spring bias tending to urgethem toward the rear of the machine. The bias on the right-hand timing arm 97 is applied by a spring 102 (FIG. 9) connected between that arm and the fixed framing of the machine. The spring bias for the left-hand timing arm 96 is provided by a'relatively heavy spring 103 (note particularly FIG. 12) which urges'a link 125 rearwardly, the latter being coupled to the timing arm through a pivoted transmission member 104. The timing arm 96 is normally held in the forward-position of FIGS. 7 and 9 byilug 81c of arm 81 engaged by the rearward vertical edge of the hatchet portion- 960. Roller 86 of arm 31 normally holds the right timing arm 97in forward unoperated position against the urging of spring 102.

The closing of the card clamping plate v3, upon depression of the main operating arm or handle 4, is controlled by right-hand timing arm 97 as follows. j Rigidly secured to the rockable shaft 28, upon which the clamping plate is rigidly mounted, is a crank 105 (FIGS. 7, 9) having at its upperfree end a roller 105a riding on the forward vertical edge of the hatchet portion 97a of the arm. In its normal unoperated position, timing arm 97 holds crank 105 in the clockwise position of FIGS. 7 and 9 I against the urging of a spring 106 which tends to move the crank to the rear. With crank 105 in normal position, the card clamping plate 3 will be in unoperated or open position. However, when arm 81 descends with operating lever 4, roller 86' of said arm will swing downwardly and to the rear about shaft 80 as an axis, allowing timing arm 97 to partake of rearward movement under the urging of its spring 102. Roller 105a of crank 105 will follow the forward edge of the timing arm under the urging of spring 106 whereby shaft 28 will rock (counterclockwise inFIG. 9, clockwise in FIGS. 4 and 5 causing the card clamping plate 3 mounted invention, it is necessary that the card clamping-plate be closed before the card depresser finger operates. Otherwise, the depresser finger 41 might move down to a position wherein it wouldabut the rear face of the card C I and would therefore be ineffective to push the card downwardly to properly seat the latter on the lip of the clamping plate.

To insure that the card depresser finger 41 does not operate before the card clamping plate 3 is closed, additional means are provided as follows. It will be recalled that the card supporting fingers 37, 38 (FIGS. 4, 5) are rigid with shaft 28 upon which the clamping plate 3 is mounted and that these fingers therefore move rearwardly with the clamping plate when the latter is closed. The right-hand finger 38 includes a rearwardly directed tail portion 107 which extends through a longitudinal'slot 108 (FIG. 3) of the main body portion of the card depresser finger 41. An arcuate edge 107a of tail portion 107 is adapted tocooperate with the lower end'wall of slot 108 to hold finger 41 blocked in its unoperated position should the primary blocking means, i.e., the right-hand timing arm 97, for any reason fail to perform its intended blocking function. When the card clamping plate 3 has moved toclosed position, edge 107a will no longer be capable of blocking the card depresser finger since a recess 10712 of tail portion 107 will now be aligned with thelower end of finger 41, whereby said lowerv edge is freev to enter said recess when the depresser finger 41 operates. Note FIG. 2 which shows the clamping plate 3 in closed position and the entire card holder rocked downwardly to a selected line position.

Earlier, it was mentioned that the downward movement of the card holder 1 is controlled by, inter alia, an

index arm (FIGS. '7, 10, 12) rigid with the rotatable shaft 15 ,upon which the card holder 1 is mounted, and

that index arm 55 (and therefore the card holder) is normally blocked against movement. This blocking of the index arm is elfected by a forwardly extending nose 110 of the card holder lock 95. Nose 110 normally underlies a lateral lug 111 of the index arm thereby preventing the latter from moving. The card holder lock will remain in its normal position blocking the index arm while the above-described operations pertaining to closing the card clamping plate 3 and operating the card depresser finger 41 are being carried out in response to descending movement of the main operating lever 4. During this phase of the operation, lug 81c (FIG. 9) of arm 81 will be traveling in a downward directionbutwill still remain in blocking relation with the rearward verticalv 1 edgeof hatchet portion 96a of the left-hand timing arm 96. However, further downward movement of unit 79 (comprising arms 4, 81, and 82) will bring lug 81c below the aforesaid vertical edge of hatchet portion 96a after they card holder has been closed, releasing the left-hand timing arm 96 for rearwardmovement. will thereupon engage a pin 112 (FIG. 7) of the card holder lock 95, shifting the latter to the rear against the action of spring (FIG. '10) whereby nose of the card holder lock no longer is in position to restrain the index arm 55. The index arm thus being freed, the. closed card holder will now rock downwardly tojthe preselected line position which has been set on keyboard 6, as described hereinbefore. Unit 79 now stands latched in fully depressed position since the short lower horizontal edge of hatchet portion 96a has moved rearwardly to a position overlying lug 810 of arm 81.

Auxiliary link 92 is effective to prevent misoperation of the machine if the operating lever 4 is held down too The'timing arm long, as follows. Downward movement of arm 81 will cause a like movement of auxiliary link 92 mounted thereon and further coupled thereto by spring 93. Lug 92b of saidlink overlaps hatchet portion 96a of timing arm 96 by a slight amount. Hence, the links movement will be limited by lug 92b engaging hatchet portion 96a. When timing arm 96 moves to the rear, the lug will remain resting on the top edge of said hatchet portion, Near the end of a cycle of operation of the machine, timing arm 96 is restored forwardly by mechanism described in detail subsequently. I If the operator has released lever 4 by this time, arm 81 will return upwardly to reposition lug 810 in blocking relation with said timing arm.

However if lever 4 is still being held down, the timing arm would be free to operate and would therefore once again move rearwardly-allowing the card holder 1, which has also been normalized-to rock downwardly. To prevent this from happening, when timing arm 96 is restored forwardly (with a slight degree of.overthrow), lug 92b will drop behind hatchet portion 96a and will therefore hold timing arm 96 forwardly until arm 81 is allowed to return upwardly, at which time lug 81c will once again be effective to block the timing arm.

To prevent the speed of descent of the card holder from becoming excessive and thereby imposing an undue load on the parts when it is halted, governor means is provided as follows. Referring particularly to FIGS. 4 and 6, a short shaft 113 is secured to a fixed framing plate 114 of the machine. Independently journalled for rotation on shaft 113 are a small flywheel 115 of relatively heavy mass and a sleeve 116 having a pinion portion 116a. A conventional unidirectional coil spring clutch 117 is adapted to link wheel 115 and sleeve 116 together as one rigid unit. A gear segment 120 rigid with the card holder shaft 15 is adapted to drive pinion 116a through gear train 121, 122. As viewed from the right-hand side of the machine, when the cardholder is moving down sleeve 116 will be driven counterclockwise. Spring clutch 117 is so arranged as to couple'the sleeve to the flywheel whenever the collar attempts to rotate ahead of, i.e., counterclockwise relative to, the flywheel. When the card holder is released for downward movementthe sleeve will be rigidly coupled to wheel 115 by spring 117 and accordingly, the relatively heavy mass of the wheel will tend to retard the descending movement of the card holder. However, when the downward movement of the card holder is terminated at the selected line position, the flywheel 115 will continue to rotate since, as will be apparent, the relative movement between the wheel and sleeve 116 is such that the spring clutch 117 will now yield. Hence,-the relatively high kinetic energy of the rotating flywheel is not imposed as a load upon the mechanism which stops the cardholder at the preselected line position.

A similar governor arrangement, designated by the numerals 113122' in FIG. 5, is employed to control the upward return movement of unit 79 to normal unoperated position. It will be recalled that unit 79, comprising lever 4 and arms 81, 82, is latched in downward position by timing arm 96 when said lever 4 has been operated to its full extent. When the unit 79 is unlatched to be normal- Ancillary Features of Card Holder Operation It will be recalled from the previous description that the left-hand timing arm 96, upon being unblocked in response to downward movement of arm 81, is urged rearwardly by a spring 103 acting on a link 125 (FIGS. 9, 12,

13) whichis coupled to the timing arm by member 104.

The forward end .of link 125 is supported for limited lengthwise movement on a fixed shaft 126. An arm 127 pivotally supported on said fixed shaft 126 includes a 10 lateral pin 127a which rides in a cam slot a of link 125. In normal unoperated position of the parts, the cam slot 125a maintains arm 127 in the lowered position seen in FIG. 12. However, when link 125 operates by moving to the rear, arm 127 will be cammed upwardly to position a lateral lug 127b thereof in blocking relation with 2. depending tongue 128 of the keyboard latching slide 67, as shown in FIG. 13. This will prevent the keyboard setting from being changed during the current operation of the machine. 8 r

The aforedescribed keyboard and card holder mechanisms are provided with electrical switches at various operating points, said switches being arranged to be. operated only if certain of the aforedescribed functions properly take place. If desired, these switches may be connected in any suitable conventional manner to the information transmitting source for which the instant machine serves as a readout to prevent transmission of the information if the card holder has not performed its intended functions.

One such switch is designated by the reference numeral 130 in FIG. 12. This switch will be operated by a depending projection 131 of link 125 when the latter oper ates by moving rearwardly.

Another such switch 132 (FIGS. 12, 12A) is mounted at the front of the keyboard and is actuated only in response to proper operation of the keyboard, in the following fashion. Switch 132 is pivotally mounted at its lower end on the fixed framing of the machine and includes a conventional movable actuator arm 132a. A spring 133 tends to urge the body of the switch counterclockwise. As described in my aforementioned copending application Serial No. 824,375, filed July 1, 1959, the keyboard mechanism includes a series of pear-shaped interlock members 134 which are rocked about their individual lower pivot points in response to depression of any one of the keys 7. As best seen in FIG. 12A, the keyboard mechanism of the instant machine includes an additional interlock member 134a located in front of the stem of the forwardmost key 7. Member 134a will be rocked forwardly in response to depression of any one of the keys 7. Pins 135 and 136 rigid with the interlock member 134a and the latching slide 67, respectively, engage the actuator arm 132a and an edge 132b of the body of switch 132, the normal position of the parts being as shown in FIG. 12A. When a key 7 is depressed, the latching slide 67 will first be cammed forwardly shifting the switch in like direction, and will then return rearwardly to latch the key indepressed position. The interlock member 134a will also rock forwardly but will remain rocked until the keyboard is subsequently cleared. Hence, pin 135 will hold the actuating arm 132a of the switch in forward. position, while spring 133 will rock the body of switch 132 rearwardly during the return movement of the latching slide whereby the switch is operated.

Each of the movable card supporting fingers 30, 31 (FIGS. 4, 5) is adapted to operate a related switch 137, 138 only if the card C has been properly seated on lip 45 of the clamping plate 3. The card supporting fingers 30, 31 each include an upwardly directed portion at their inner ends adapted to operate said switches. The arrangement is such that the switches 137, 138 will be oper* ated by the card supporting fingers only if the card, which rests on the fingers 30, 31, is depressed by depresser finger 41 a suflicient extent to seat its entire lower edge on lip 45. The downward movement of the card into properly seated position on lip 45 will cause fingers 30 and 31 to be rocked counterclockwise an amount sufficient to operate switches 137, 138.

Resume 0 Card Holder Operation A card C is inserted by the operator into the card holder 1 and an appropriate line selector key 7 depressed. The card at this time will be disposed in the position shown in dot-dash lines in FIG. 4, the bottom edge of the card resting on the spaced card supporting fingers 30, 31 and the card being held'forwardly by the forwardly directed portions 37a, 33a of arms 37, 38 respectively. The operator now depresses the main operating handle Arms 81 and 82, rigid with the operating handle 4, Wlll rock downwardly and to the rear about shaft 80 as in axis. Such movement of arm 81 will allow the righthand timing arm 97 to rock rearwardly, said timing arm being effective to control the closing of the card clamping plate 3 through crank 105. Cam edges 82a and 82b of arm 82 will control the card depresser finger 41 so that the latter operates on the top edge of the card to push the card downwardly into proper seated position on lip 45 of the clamping plate 3.

Continued downward movement of operating handle 4 after the above described operations have been carried out will bring lug 81c of arm 81 to a position below the hatchet portion 96a of the left-hand timing arm 96, said timing arm thereupon being free to move to the rear.

whereby it rocks the card holder lock 95 in like direction, unblocking crank arm 55 of rotatable shaft 15 upon which the entire card holder 1 is rigidly mounted. The card holder actuating spring 50 will thereupon rock the card holder downwardly causing pin 55a of arm 55 to move into engagement with lug 56a of link 56, carrying the link rearwardly. 7 Such movement will continue until halted by a tooth 61a of rack 61 engaging the stem of the depressed line selector key 7.

Read-In and Printing The digital information to be printed on the selected line ofcard C is transmitted to the instant machine in the form of electrical signals which control the operation of the solenoid operated pin carriage 8. After the digital information has been set up on the pin carriage, a single cycle clutch 205 is engaged to initiate a power cycle of operation of the printing mechanism of the machine. In this power cycle the ordinal series of differentially movable racks 13 move from a normal or home position to an operated position determined by the setting of the pin carriage. In conventional fashion the differential excursion of the racks controls diiferential setting of the series of type wheels which are then fired to print the transmitted information onthe selectedline of the record card. a The printing mechanism and the pin carriage for controlling it can be of'any suitable well-known design used in ten-key adding and calculating machines. In the preferred embodimentof the inventiondisclosed herein, I prefer to employ the pin carriage and printing mechanism disclosed in detail in my copending patent application Serial No. 819,174, filed June 9, 1959, now Patent No. 3,057,549, to which reference is hereby made for a full disclosure of details of structure and operation. I Pin Carriage and Solenoid Operating Mechanism Therefor The pin carriage s Fros.,2, 17, 18,21) comprises rigidly interconnected upper and lower framing plates 150,

151. Mounted, in the upper plate 150 are ordinarily arranged columns of digit pins 152 each of which is normally raised to the inactive position shown in FIGS. 2 and 18 but adapted to be set by being depressed. The

pincarriage is slidably mounted for movement in an ordinal direction on guide rails 153, 154, and normally lies in the rightmost ordinal position shown in FIG. 17. In this position, the leftmost column, of pins 152 lies underneath and in vertical alignment with a column of depending projections or noses 155a (FIGS. 17, 18) of a plurality of substantially U-shaped bails 155. Any one pin of the column of pins lying directly beneath the depending noses 155a of the bails 155 is adapted to be set arms of the leftwardly and rightwardly extending bails slidably guided on a fixed shaft for vertical movement. The horizontal right portions of the bails are guided for movement by slotted comb-like angle members 161, 162 similar to members 156, 157.

At their lower ends the aforesaid innerarms 155b terminate in the depending operating noses 155a for the pins 152. Compression springs 1 63 and 164 acting on the outer arms of the bails bias the bails upwardly to the unopera-te'd position of FIG. 17. Each of the bails is adapted to be operated by a corresponding one of the plurality of solenoids 11, each solenoid armature 165 being pivotally coupled to the related bail. For this purpose, rigid with each armature 165 is an upwardly open ing yoke 165a through which the horizontal arm of the bail extends, the two being coupled by a pivot pin 166. As best seen in FIGS. 1 and 19, the solenoids 11 are disposed in side by side pairs, the two solenoids of each pair lying directly behind one another, adjacent pairs being staggered so that the solenoid armatures are all offset from one another in a fore and aft direction by equal distances.

The solenoids which operate the leftwardly extending by all to be identical in shape and to be planar, i.e., fiat and devoid of any offsets or bends, whereby the fabricating costs of the bails is considerably reduced.

Each pair of solenoids is secured to a base plate 167 V by a channel-shaped bracket 17%. A slot 171 is provided in plate 167, through which the operating noses' 155a have access to the underlying row of pins 152.

It will be understood that to set up a desired value in the column of the pin carriage which then underlies the row of setting noses 155a, the associated solenoid 11 is I energized. This will cause the related bail 155 to be pulled downwardly against the urging of its, springs 163, 164 whereby the related pin 152 of the pin carriage 8 ispushed downwardly by the nose 155a of the bail to set position. Subsequently, the set pins will be effective to control excursion of the actuating racks 13 for the printing mechanism by acting as stops in conjunction with a shoulder 172'formed at the front end of each rack. The I pins are yieldably detented in both their upper unset and lower set positions by conventional cooperating crimped detent members 168 made of spring material.

Escapement of PinCarriaga sponse to entry of each digit into the pin carriage 8 the latter is escaped one order to the left to bring the adjacent right-hand column of p'ins thereof into position underlying the single column of setting noses 155a of the bails 155, whereby the next digit can be set upon the pin carriage. i

The pin carriage includesan'ordinally arranged row of escapement pins 173 (FIGS. 2, 17, 18, 21) which lie forwardly of the columns .of digit pins 152, there being an escapement pin in line with and corresponding to each column of d-igit pins. The escapement pinsnormally are disposed in upward unoperated position as seen in FIG. 7 2. In this position, thepin 173 corresponding to the col umn of digit pins which is then disposed underneath the row of settingnoses 155a engages the upper end of a cooperable stop member 174 carried by the fixed framing of the machine, thereby blocking the pin carriage against movement toward the left. The pin carriage is urged in this direction by a normally charged tension spring 175 (FIGS. 15, 16) acting on a bell crank 176 pivoted at 177 on the fixed framing. The forwardly extending arm 176a of the bell crank is pivotally coupled to the right-hand end of a link 180, the other end of the link being pivotally coupled to the left-hand side of the pin carriage by means of a pin 181. Spring 175 applies a clockwise bias to hell crank 176, which is applied as a leftward thrust to the pin carriage 8 through link 180.

The pin carriage is allowed to escape one order to the left upon the setting up of each digit in the pin carriage, as follows. An elongated arm 182 (FIGS. 1, l7-20) is pivotally mounted on a longitudinally extending shaft 183 to the left of the leftmost pair of solenoids 11. Arm 182 extends toward the right and terminates adjacent the aligned row of inner arms 155b of bails 155. The right hand free end of arm 182 include-s a depending tail 182a which overlies the row of escapement pins 173. More particularly, tail 182a overlies the one escapement pin 173 which is aligned with the column of digit pins 152 lying directly beneath the noses 155a of the bails. It will be recalled that it is this one pin, in cooperation with stop member 174, which currently prevents the pin carriage from escaping 'to the left. At the upper end of their depending noses 155a (FIG. 17), each of the inner bail arms 15511 is formed with a pair of oppositely directed shoulders 184. Secured to arm 182 at the upper end of tail 182a is a single elongated rearwardly extending pin 182b which underlies the left shoulders 184 of all the bails. Pin 1821) is urged upward into yieldable engagement with the shoulders 184 by spring 185 connected to arm 182. It will be seen therefore that when any one of the bails 155 is pulled downwardly by its associated solenoid 11 to set the related pin of the underlying row of digit pins 152, ar-m 182 Will be forced downwardly therewith and will depress the aligned escapement pin 173 whereby the lower forwardly extending projection 173a of the latter will be removed from engagement with the pin carriage stop member 174.

However, the downward movement of arm 182 which causes depression of the aforesaid escapement pin 173 is also effective to position an auxiliary blocking member in the path of one of a series of ordinally arranged escapement teeth 186 on the pin carriage. This auxiliary blocking member comprises a blocking lug 187a formed at the left-hand free end of a lever arm 187 which is journalled for rocking movement at its right-hand end. A forward offset 190 of arm 182 extends into a slotted arcuate portion 18712 of lever 187 so that when arm 182 is swung downwardly in response to operation of one of the digital pin setting bails 155, it will cause downward movement of lever 187 to place lug 187a in block ing relation with' one of the pin carriage escapement teeth 186. Upon deenergization of the solenoid 11 which has just been operated to set one of the digit pins 152, the above described components will be spring restored upwardly to their normal unoperated positions, disengaging lug 187a from the escapement rack teeth 186 whereby the pincarriagewill shift one order to the left as controlled by the next rightmost escapement pin 173 coming into engagement with stop member 174.

The above described operations which involve controlling escapement of the pin carriage are repeated in response to successive energization of the various solenoids 11 to enter the digits of aplural digit value into the pin carriage The timing of the transmission of successive information pulses to the solenoids can be controlled wholly by their source provided the interval between pulses is of sufficient duration to allow the aforedescribed setting mechanism for the digit pins and escapement control mechanism to operate between successive pulses. In'such an arrangement, the stop member '174 which is abutted by theleftmost unsetescapement pin 173 can be fixed relative to the body ofthe instant machine.

There will now be described, however, suitable escapement control mechanism which includes a switch or equivalent element operated in response to the escape ment of the pin carriage one order to the left. Operation of this switch can be employed in any well-known manner to delay the transmission of the next pulse to the solenoids to insure that the pin carriage has been properly stepped one order to the left and is therefore in position to receive the next digit. To this end, the aforesaid blocking shoulder 174 is provided on a slide 191 having slots 191a by which it is mounted on pins 192 for limited longitudinal movement relative to the fixed framing. Slide 191 is normally held in its leftmost position shown in FIG. 17 by the leftmost undepressed escapement pin 173 abutting the cooperable shoulder 174 of the slide. In this regard, it will be recalled that the pin carriage is normally biased toward the left.

' Mounted adjacent the left-hand end of slide 191' is a conventional two position switch 193 having an actuator portion 193a which is lightly spring biased toward the right but which is normally held in its left position by slide 191. When the escapement pin 173 is depressed in the first phase of the escapement operation, its disengagement from slide 191 allows the switch actuator 193a (and slide 191) to move to the right whereby switch 193 assumes the other of its positions. In the second and final phase of the escapement operation, i.e., when blocking lug 187a is disengaged from the escapement rack 186, the leftward shifting movement of the pin carriage will cause the next rightmost escapement pin 173-which is undepressed-40 restore slide 191 to the left thereby restoring switch 193 to its original condition. The step of shifting movement of the slide, and therefore of the pin carriage, is limited by the end Walls of the slide slots 191a engaging the pins 192 upon which the slide is mounted.

The above-described cycle of operation of switch 193 under the'control of slide. 191 can be employed in any conventional fashion, as by gating techniques, to control the signal source and prevent the next digital signal from being transmitted to the solenoids 11 until the switch has been operated by the leftward return movement of the slide, such return movement signifying that a proper one-order escapement of the carriage has been effected. If desired an additional spring means can be provided connected to slide 191 to bias it rightwardly.

Power Cycle (Drive Means) The power for operating the various mechanisms of the instant machine is provided by a motor 200 (FIG. 12) whose output shaft is connected through a suitable gear train 201, 202, 203, 204 to the toothed input member 206 of a single cycle clutch 205. -The electrical power circuit for motor 200 is controlled by a switch 207 which is normally held in off position by a lateral pin 208 mounted on the middle arm 210a of a threearmed lever 210 pivoted on the fixed framing at 211. It will be recalled that the control mechanism for the card holder includes the two pivotally interconnected links 104, (FIG. 12). The uppermost arm 21% of the three-armed lever 210 is also coupled to the pivotal interconnection of links 104, 125. The lowermost arm 2100 of lever 210 includes an arcuate cam surface 210d which is'adapted to be engaged by a pin 212 of the driven member 213 of the clutch near the end of the cycle to normalize said lever. As described earlier, the links 104 and 125 are moved toward the rear to re: lease the card holder 1 for downward line-selecting movement. Hence, in response to the rearward movement of the two aforesaid links, three-armed lever 210 will be swung counterclockwise as viewed in FIG. 12. This movement of lever 210 will close the motor switch 207, starting the motor in operation, whereby the driving member 206 of the single cycle clutch will be rotated; and

will also lower the arcuate cam surface 210d to be in 1 position for engagement by pin 212 of the clutch driven member 213 near the end of a single cycle of revolution for normalizing purposes. r The clutch, which at this time is still held disengaged, will be engaged to initiate motor operation after the digits of the value to be printed have been set up on the pin carriage 8. Clutch 205 can be of well-known construction and includes a pivoted pawl 214 carried by the output member 213 of the clutch. Pawl 214 is spring-biased for engagement with the clutch input member 206, but is normally held disengaged by a detent tooth 215a provided at one end of a bell crank 215, a spring 216 urging the bell crank clockwise (FIG. 12) into clutch-disengaging position. A solenoid 217 coupled to bell crank 215 is pulsed after the value to be printedis set up on the pin carriage, rocking the bell crank counterclockwise to allow the clutch 205 to engage and thereby initiating a single cycle of rotation of the main drive shaft 220 of the machine. Solenoid 217 can be pulsed at the appropriate time, i.e., after the value to be printed has been set into the pin carriage, either under manual control or automatically'in response to a signal sent from the information transmitting device. The free end of the horizontal arm of bell crank 215 closely overlies a lateral lug 218a of a lever 218. Accordingly, counterclockwise clutch-engaging movement of the crankwill swing lever 218 clockwise whereby a pin 21% thereof will close a full-cycle control switch 219 for motor 2110. Switch 219 is in parallel with switch 257, and is provided because the latter switch is normalized under control of lever 210 before the cycle is fully completed. Hence, switch 219 will keep the motor in operation until the very end of the cycle at which time bell crank 215 drops into de'tenting relation 1 withthe clutch, allowing lever 218 to be spring-restored counterclockwise whereby switch 219 opens.

Power Cycle (Machine Operations) shaft: The racks 13 will travel to the rear as limited by the set pins 152 of the pin carriage to differentially adjust the type wheels the card holder 1 will be aligned; the

printing mechanism, willbe operated to print the value I on the card C; and finally, the various mechanisms of the machine will be normalized. For a better understanding of the timing of the various operations, the timing chart shown in FIG. 22 should be read in conjunction with the various other figures referred to in the following descriptions of these operations. The preferred printing mechanism of the instant machine is substantially identical with the printing mechanism of my aforementioned copending application Serial No. 819,174, filed June 9, 1959. As there disclosed in detail, each type wheel 5 is mounted at the upper end of a hammer plate 221 (FIGS. 2,- 8) which is pivotally mounted at its lower end on the fixed framing. Each wheelS is rotatably adjusted by a rearward extension of an associated rack 13 through a suitable gear train provided on said hammer plate, said gear train including a gear 222 fast with said wheel. A driving arm 223 is pivotally mounted on each hammer plate 221 and is spring urged clockwise. Arms 223 are normally held counterclockwise by a restore'bail 224 engaging the upper ends of the arms.

' At the upper front edge of each plate 221 is a lug 22101 which is adapted for engagement by arm 223. rearwardly extending finger-223a of arm 223 embraces'the front edge of plate 221. I The driving arms 223 are normally prevented from operating by triggers 225, which are adapted to be tripped off by a depending bail226.

at the preselected line.

232 of all the racks '13 are urged by their respective rack springs. Cam 230 is of such contour that shortly after drive shaft 220 commences its cycle of rotation ,(clockwise in FIG. 12), follower arm231 will be allowed to rock clockwise permitting the racks to move toward the rear as limited by the previously set digit pins 152.

As the racks are moved rearwardly, restoring bail 224 will be rocked clockwise from engagement with driving arms 223, whereupon the arms willbe moved by their springs into engagement with lugs 225a of triggers 225.

After the racks have completed their rearward movement, they remain in their respective positions during a dwell phase of the rack operation. During this dwell a cam 233 is effective, through a lever 234, to operate bail 226 to release the triggers 225, whereby the hammer plates 221 are spring-impelled toward the cardholder to cause type wheels 5 to print on' card C.

Following printing, a rising edge 235 of cam 235 will restore the racks '13 forwardly to home position.

As the racks 13 are completing their rearward movement but before printing actually occurs, an aligning device is operative to precisely position the card holder 1 As described earlier, the card holder has already been differentially adjusted to the selected line position. However, as is common with mechanisms of this type it is necessary to make a further fine adjustment to insure accurate line positioning. The aligning function is performed by an aligning tooth 240a of a lever 240 (FIG. 11) cooperable with a toothed aligning segment 241 rigidly mounted on the card holder shaft 15. The aligning tooth 240a is normally held away from engageable relation with the toothed segment 241 by a spring 242. At its lower free end, arm 240 is pivotally coupled to another arm 243. Rigid with drive shaft 220 arm 243, rocking it counterclockwise and arm 240 clockwise about their respective pivots. Prior to this the differential downward rocking movement of the card holder to the preselected line position will have caused the toothed segment 241 to swing (counterclockwisein FIG. 11) a like angular distance. Accordingly, the clockwise movement of arm 24!) will bring the aligning tooth 240a thereof into meshing engagement with the toothed portion of the segment thereby aligning the card holder precisely. To hold the aligning tooth in operated position for the required amount of time, the second pin 244b of plate 244 will move into engagement with the cam surface 243a of arm 243 to hold the aligning tooth in engaged position just before the first tooth 244a leaves the cam surface. After printing has been effected, the second pin 244b will leave cam surface 243a allowing spring. 242 to withdraw the aligning tooth and restore arm 240 to normal unoperated position. I 1

In the final phase of the single cycle of revolution of the main drive shaft 220 the card holder and the related control mechanism will be normalized, and the pin carriage 8 will be returned to its rightmost position.

The normalizing of the card holder is controlled by a snail cam 245 (FIG. 11) mountedon drive shaft 220.

In the course of rotation of the drive shaft, the arcuate rising surface of the cam will engage a roller 246 of lever 51 rocking the latter counterclockwise whereby shaft 15 upon which the card holder is rigidly mounted is restored clockwise to its home position. The particular op- 

1. IN A BUSINESS MACHINE HAVING PRINTING MECHANISM OPERABLE TO PRINT ON A RECORD SHEET: A HOLDER FOR SAID RECORD SHEET; MEANS FOR LOCATING SAID RECORD SHEET IN A PREDETERMINED POSITION IN SAID HOLDER; MEANS MOUNTING SAID HOLDER FOR MOVEMENT RELATIVE TO SAID PRINTING MECHANISM TO AND FROM A NORMAL HOME POSITION LOCATED AT GIVEN DISTANCES RESPECTIVELY FROM A PLURALITY OF PRINTING POSITIONS; DRIVE MEANS FOR MOVING SAID HOLDER FROM SAID HOME POSITION; MEANS FOR INITIATING OPERATION OF SAID DRIVE MEANS; LINE SELECTION MEANS SETTABLE TO TERMINATE OPERATION OF SAID DRIVE MEANS WITH SAID HOLDER IN ANY SELECTED ONE OF SAID PLURALITY OF PRINTING POSITIONS WITH A GIVEN LINE OF SAID RECORD SHEET AT THE SELECTED PRINTING POSITION; MEANS FOR INITIATING OPERATION OF SAID PRINTING MECHANISM; AND MEANS OPERABLE UPON OPERATION OF SAID PRINTING MECHANISM SUBSEQUENT TO EACH PRINTING OPERATION FOR RESTORING SAID HOLDER TO SAID HOME POSITION FROM ANY SELECTED PRINTING POSITION. 